1117072287666 has 12 divisors (see below), whose sum is σ = 2420323289982. Its totient is φ = 372357429216.

The previous prime is 1117072287649. The next prime is 1117072287671. The reversal of 1117072287666 is 6667822707111.

It can be written as a sum of positive squares in only one way, i.e., 1107274257441 + 9798030225 = 1052271^2 + 98985^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31029785751 + ... + 31029785786.

Almost surely, 2^{1117072287666} is an apocalyptic number.

1117072287666 is an abundant number, since it is smaller than the sum of its proper divisors (1303251002316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1117072287666 is a wasteful number, since it uses less digits than its factorization.

1117072287666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62059571545 (or 62059571542 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 54.

The spelling of 1117072287666 in words is "one trillion, one hundred seventeen billion, seventy-two million, two hundred eighty-seven thousand, six hundred sixty-six".